Aluminum 10mm Stalk Motorcycle Turn Signal Blinker Lights for universal bike They are ideal for standard bikes, and for those who prefer metal over plastic housings. They are great for your early British bikes, or Japanese motorcycles and naked street bikes ,street trackers and cruiser bikes. Body Size: 8.0cm, 3.0cm, 3.0cm (Longest point) ,Stud Size: 3cm (Long), 10mm(Diameter)